Light transmitting substrate, array substrate, color filter substrate and display device

Abstract

Disclosed are a light transmitting substrate, an array substrate, a color filter substrate and a display device. The light transmitting substrate includes a substrate body ( 10 ) comprising at least one intensifier layer ( 11 ) and at least one micro-ring resonate structure with a gain located in the intensifier layer ( 11 ). By arranging micro-ring resonate structure(s) with a gain in the substrate body ( 10 ), the light incident on the substrate is intensified upon passing through the micro-ring resonate structure so as to increase the intensity of the incident light.

What is claimed is: 
     
       1. A light transmitting substrate comprising a substrate body, the substrate body comprises:
 at least one intensifier layer; and 
 one a plurality of micro-ring resonate structures with a gain located in the intensifier layer, 
 wherein each of the micro-ring resonate structures comprises a straight waveguide and a resonate ring which are coupled at a coupling end through a coupler such that a light wave input at an end of the straight waveguide has part of energy thereof coupled into the resonator ring at the coupling end and is output at the other end of the straight waveguide, 
 wherein the micro-ring resonate structures are distributed in groups, and each group includes two micro-ring resonate structures which are arranged in opposite to each other such that the wave passes through the coupling ends in the two micro-ring resonate structures in opposite directions. 
 
     
     
       2. The light transmitting substrate of  claim 1 , wherein the micro-ring resonate structure is located at a surface of the substrate body. 
     
     
       3. The light transmitting substrate of  claim 1 , wherein the substrate body contains a material of glass, resin or quartz. 
     
     
       4. An array substrate comprising the light transmitting substrate of  claim 1 . 
     
     
       5. A color filter substrate comprising the light transmitting substrate of  claim 1 ,
 wherein respective micro-ring resonate structures corresponding to color pixel layers of different colors in a single pixel unit of the color filter substrate have different sizes matched with wavelengths of light waves of respective colors. 
 
     
     
       6. The color filter substrate of  claim 5 , wherein the color pixel layers comprise at least a red pixel layer, a green pixel layer and a blue pixel layer. 
     
     
       7. The color filter substrate of  claim 6 , wherein the micro-ring resonate structure corresponding to the red pixel layer has a size matched with a wavelength of a red light wave;
 the micro-ring resonate structure corresponding to the green pixel layer has a size matched with a wavelength of a green fight wave; and 
 the micro-ring resonate structure corresponding to the blue pixel layer has a size matched with a wavelength of a blue light wave. 
 
     
     
       8. The array substrate of  claim 4 , wherein the micro-ring resonate structure is located at a surface of the substrate body. 
     
     
       9. The color filter substrate of  claim 5 , wherein the micro-ring resonate structure is located at a surface of the substrate body.